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<td >Qt 5.9</td><td ><a href="qtcore-index.html">Qt Core</a></td><td ><a href="qtcore-module.html">C++ Classes</a></td><td >QPair</td></tr></table><table class="buildversion"><tr>
<td id="buildversion" width="100%" align="right">Qt 5.9.4 Reference Documentation</td>
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<h3><a name="toc">Contents</a></h3>
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<li class="level1"><a href="#public-types">Public Types</a></li>
<li class="level1"><a href="#public-functions">Public Functions</a></li>
<li class="level1"><a href="#public-variables">Public Variables</a></li>
<li class="level1"><a href="#related-non-members">Related Non-Members</a></li>
<li class="level1"><a href="#details">Detailed Description</a></li>
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<h1 class="title">QPair Class</h1>
<!-- $$$QPair-brief -->
<p>The <a href="qpair.html">QPair</a> class is a template class that stores a pair of items. <a href="#details">More...</a></p>
<!-- @@@QPair -->
<div class="table"><table class="alignedsummary">
<tr><td class="memItemLeft rightAlign topAlign"> Header:</td><td class="memItemRight bottomAlign"> <span class="preprocessor">#include <QPair></span>
</td></tr><tr><td class="memItemLeft rightAlign topAlign"> qmake:</td><td class="memItemRight bottomAlign"> QT += core</td></tr></table></div><ul>
<li><a href="qpair-members.html">List of all members, including inherited members</a></li>
</ul>
<a name="public-types"></a>
<h2 id="public-types">Public Types</h2>
<div class="table"><table class="alignedsummary">
<tr><td class="memItemLeft rightAlign topAlign"> typedef </td><td class="memItemRight bottomAlign"><b><a href="qpair.html#first_type-typedef">first_type</a></b></td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> typedef </td><td class="memItemRight bottomAlign"><b><a href="qpair.html#second_type-typedef">second_type</a></b></td></tr>
</table></div>
<a name="public-functions"></a>
<h2 id="public-functions">Public Functions</h2>
<div class="table"><table class="alignedsummary">
<tr><td class="memItemLeft rightAlign topAlign"> </td><td class="memItemRight bottomAlign"><b><a href="qpair.html#QPair">QPair</a></b>()</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> </td><td class="memItemRight bottomAlign"><b><a href="qpair.html#QPair-1">QPair</a></b>(const T1 &<i>value1</i>, const T2 &<i>value2</i>)</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> </td><td class="memItemRight bottomAlign"><b><a href="qpair.html#QPair-2">QPair</a></b>(const QPair<TT1, TT2> &<i>p</i>)</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> </td><td class="memItemRight bottomAlign"><b><a href="qpair.html#QPair-3">QPair</a></b>(QPair<TT1, TT2> &&<i>p</i>)</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> void </td><td class="memItemRight bottomAlign"><b><a href="qpair.html#swap">swap</a></b>(QPair &<i>other</i>)</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> QPair &</td><td class="memItemRight bottomAlign"><b><a href="qpair.html#operator-eq">operator=</a></b>(const QPair<TT1, TT2> &<i>p</i>)</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> QPair &</td><td class="memItemRight bottomAlign"><b><a href="qpair.html#operator-eq-1">operator=</a></b>(QPair<TT1, TT2> &&<i>p</i>)</td></tr>
</table></div>
<a name="public-variables"></a>
<h2 id="public-variables">Public Variables</h2>
<div class="table"><table class="alignedsummary">
<tr><td class="memItemLeft rightAlign topAlign"> T1 </td><td class="memItemRight bottomAlign"><b><a href="qpair.html#first-var">first</a></b></td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> T2 </td><td class="memItemRight bottomAlign"><b><a href="qpair.html#second-var">second</a></b></td></tr>
</table></div>
<a name="related-non-members"></a>
<h2 id="related-non-members">Related Non-Members</h2>
<div class="table"><table class="alignedsummary">
<tr><td class="memItemLeft rightAlign topAlign"> QPair<T1, T2> </td><td class="memItemRight bottomAlign"><b><a href="qpair.html#qMakePair">qMakePair</a></b>(const T1 &<i>value1</i>, const T2 &<i>value2</i>)</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> void </td><td class="memItemRight bottomAlign"><b><a href="qpair.html#swap-1">swap</a></b>(QPair<T1, T2> &<i>lhs</i>, QPair<T1, T2> &<i>rhs</i>)</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> bool </td><td class="memItemRight bottomAlign"><b><a href="qpair.html#operator-not-eq">operator!=</a></b>(const QPair<T1, T2> &<i>p1</i>, const QPair<T1, T2> &<i>p2</i>)</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> bool </td><td class="memItemRight bottomAlign"><b><a href="qpair.html#operator-lt">operator<</a></b>(const QPair<T1, T2> &<i>p1</i>, const QPair<T1, T2> &<i>p2</i>)</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> QDataStream &</td><td class="memItemRight bottomAlign"><b><a href="qpair.html#operator-lt-lt">operator<<</a></b>(QDataStream &<i>out</i>, const QPair<T1, T2> &<i>pair</i>)</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> bool </td><td class="memItemRight bottomAlign"><b><a href="qpair.html#operator-lt-eq">operator<=</a></b>(const QPair<T1, T2> &<i>p1</i>, const QPair<T1, T2> &<i>p2</i>)</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> bool </td><td class="memItemRight bottomAlign"><b><a href="qpair.html#operator-eq-eq">operator==</a></b>(const QPair<T1, T2> &<i>p1</i>, const QPair<T1, T2> &<i>p2</i>)</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> bool </td><td class="memItemRight bottomAlign"><b><a href="qpair.html#operator-gt">operator></a></b>(const QPair<T1, T2> &<i>p1</i>, const QPair<T1, T2> &<i>p2</i>)</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> bool </td><td class="memItemRight bottomAlign"><b><a href="qpair.html#operator-gt-eq">operator>=</a></b>(const QPair<T1, T2> &<i>p1</i>, const QPair<T1, T2> &<i>p2</i>)</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> QDataStream &</td><td class="memItemRight bottomAlign"><b><a href="qpair.html#operator-gt-gt">operator>></a></b>(QDataStream &<i>in</i>, QPair<T1, T2> &<i>pair</i>)</td></tr>
</table></div>
<a name="details"></a>
<!-- $$$QPair-description -->
<div class="descr">
<h2 id="details">Detailed Description</h2>
<p>The <a href="qpair.html">QPair</a> class is a template class that stores a pair of items.</p>
<p><a href="qpair.html">QPair</a><T1, T2> can be used in your application if the STL <code>pair</code> type is not available. It stores one value of type T1 and one value of type T2. It can be used as a return value for a function that needs to return two values, or as the value type of a <a href="containers.html">generic container</a>.</p>
<p>Here's an example of a <a href="qpair.html">QPair</a> that stores one <a href="qstring.html">QString</a> and one <code>double</code> value:</p>
<pre class="cpp">
<span class="type"><a href="qpair.html#QPair">QPair</a></span><span class="operator"><</span><span class="type"><a href="qstring.html">QString</a></span><span class="operator">,</span> <span class="type">double</span><span class="operator">></span> pair;
</pre>
<p>The components are accessible as public data members called <a href="qpair.html#first-var">first</a> and <a href="qpair.html#second-var">second</a>. For example:</p>
<pre class="cpp">
pair<span class="operator">.</span>first <span class="operator">=</span> <span class="string">"pi"</span>;
pair<span class="operator">.</span>second <span class="operator">=</span> <span class="number">3.14159265358979323846</span>;
</pre>
<p>Note, however, that it is almost always preferable to define a small struct to hold the result of a function with multiple return values. A struct trivially generalizes to more than two values, and allows more descriptive member names than <code>first</code> and <code>second</code>:</p>
<pre class="cpp">
<span class="keyword">struct</span> Variable {
<span class="type"><a href="qstring.html">QString</a></span> name;
<span class="type">double</span> value;
};
Variable v;
v<span class="operator">.</span>name <span class="operator">=</span> <span class="string">"pi"</span>;
v<span class="operator">.</span>value <span class="operator">=</span> <span class="number">3.14159265358979323846</span>;
</pre>
<p>The advent of C++11 automatic variable type deduction (<code>auto</code>) shifts the emphasis from the type name to the name of functions and members. Thus, <a href="qpair.html">QPair</a>, like <code>std::pair</code> and <code>std::tuple</code>, is mostly useful in generic (template) code, where defining a dedicated type is not possible.</p>
<p><a href="qpair.html">QPair</a>'s template data types (T1 and T2) must be <a href="containers.html#assignable-data-types">assignable data types</a>. You cannot, for example, store a <a href="../qtwidgets/qwidget.html">QWidget</a> as a value; instead, store a <a href="../qtwidgets/qwidget.html">QWidget</a> *. A few functions have additional requirements; these requirements are documented on a per-function basis.</p>
</div>
<p><b>See also </b><a href="containers.html">Container Classes</a>.</p>
<!-- @@@QPair -->
<div class="types">
<h2>Member Type Documentation</h2>
<!-- $$$first_type -->
<h3 class="fn" id="first_type-typedef"><a name="first_type-typedef"></a>typedef QPair::<span class="name">first_type</span></h3>
<p>The type of the first element in the pair (T1).</p>
<p><b>See also </b><a href="qpair.html#first-var">first</a>.</p>
<!-- @@@first_type -->
<!-- $$$second_type -->
<h3 class="fn" id="second_type-typedef"><a name="second_type-typedef"></a>typedef QPair::<span class="name">second_type</span></h3>
<p>The type of the second element in the pair (T2).</p>
<p><b>See also </b><a href="qpair.html#second-var">second</a>.</p>
<!-- @@@second_type -->
</div>
<div class="func">
<h2>Member Function Documentation</h2>
<!-- $$$QPair[overload1]$$$QPair -->
<h3 class="fn" id="QPair"><a name="QPair"></a>QPair::<span class="name">QPair</span>()</h3>
<p>Constructs an empty pair. The <code>first</code> and <code>second</code> elements are initialized with <a href="containers.html#default-constructed-value">default-constructed value</a>s.</p>
<!-- @@@QPair -->
<!-- $$$QPair$$$QPairconstT1&constT2& -->
<h3 class="fn" id="QPair-1"><a name="QPair-1"></a>QPair::<span class="name">QPair</span>(const <span class="type">T1</span> &<i>value1</i>, const <span class="type">T2</span> &<i>value2</i>)</h3>
<p>Constructs a pair and initializes the <code>first</code> element with <i>value1</i> and the <code>second</code> element with <i>value2</i>.</p>
<p><b>See also </b><a href="qpair.html#qMakePair">qMakePair</a>().</p>
<!-- @@@QPair -->
<!-- $$$QPair$$$QPairconstQPair<TT1,TT2>& -->
<h3 class="fn" id="QPair-2"><a name="QPair-2"></a>QPair::<span class="name">QPair</span>(const <span class="type"><a href="qpair.html#QPair">QPair</a></span><<span class="type">TT1</span>, <span class="type">TT2</span>> &<i>p</i>)</h3>
<p>Constructs a pair from the other pair <i>p</i>, of types TT1 and TT2. This constructor will fail if <code>first</code> cannot be initialized from <code>p.first</code> or if <code>second</code> cannot be initialized from <code>p.second</code>.</p>
<p>This function was introduced in Qt 5.2.</p>
<p><b>See also </b><a href="qpair.html#qMakePair">qMakePair</a>().</p>
<!-- @@@QPair -->
<!-- $$$QPair$$$QPairQPair<TT1,TT2>&& -->
<h3 class="fn" id="QPair-3"><a name="QPair-3"></a>QPair::<span class="name">QPair</span>(<span class="type"><a href="qpair.html#QPair">QPair</a></span><<span class="type">TT1</span>, <span class="type">TT2</span>> &&<i>p</i>)</h3>
<p>Move-constructs a <a href="qpair.html">QPair</a> instance, making it point to the same object that <i>p</i> was pointing to.</p>
<p>This function was introduced in Qt 5.2.</p>
<!-- @@@QPair -->
<!-- $$$swap[overload1]$$$swapQPair& -->
<h3 class="fn" id="swap"><a name="swap"></a><span class="type">void</span> QPair::<span class="name">swap</span>(<span class="type"><a href="qpair.html#QPair">QPair</a></span> &<i>other</i>)</h3>
<p>Swaps this pair with <i>other</i>.</p>
<p>Equivalent to</p>
<pre class="cpp">
<a href="qtalgorithms-obsolete.html#qSwap-1">qSwap</a>(<span class="keyword">this</span><span class="operator">-</span><span class="operator">></span>first<span class="operator">,</span> other<span class="operator">.</span>first);
<a href="qtalgorithms-obsolete.html#qSwap-1">qSwap</a>(<span class="keyword">this</span><span class="operator">-</span><span class="operator">></span>second<span class="operator">,</span> other<span class="operator">.</span>second);
</pre>
<p>Swap overloads are found in namespace <code>std</code> as well as via argument-dependent lookup (ADL) in the namespace of <code>T</code> .</p>
<p>This function was introduced in Qt 5.5.</p>
<!-- @@@swap -->
<!-- $$$operator=[overload1]$$$operator=constQPair<TT1,TT2>& -->
<h3 class="fn" id="operator-eq"><a name="operator-eq"></a><span class="type"><a href="qpair.html#QPair">QPair</a></span> &QPair::<span class="name">operator=</span>(const <span class="type"><a href="qpair.html#QPair">QPair</a></span><<span class="type">TT1</span>, <span class="type">TT2</span>> &<i>p</i>)</h3>
<p>Copies pair <i>p</i> into this pair.</p>
<p>This function was introduced in Qt 5.2.</p>
<p><b>See also </b><a href="qpair.html#qMakePair">qMakePair</a>().</p>
<!-- @@@operator= -->
<!-- $$$operator=$$$operator=QPair<TT1,TT2>&& -->
<h3 class="fn" id="operator-eq-1"><a name="operator-eq-1"></a><span class="type"><a href="qpair.html#QPair">QPair</a></span> &QPair::<span class="name">operator=</span>(<span class="type"><a href="qpair.html#QPair">QPair</a></span><<span class="type">TT1</span>, <span class="type">TT2</span>> &&<i>p</i>)</h3>
<p>Move-assigns pair <i>p</i> into this pair instance.</p>
<p>This function was introduced in Qt 5.2.</p>
<!-- @@@operator= -->
</div>
<div class="vars">
<h2>Member Variable Documentation</h2>
<!-- $$$first -->
<h3 class="fn" id="first-var"><a name="first-var"></a><span class="type">T1</span> QPair::<span class="name">first</span></h3>
<p>The first element in the pair.</p>
<!-- @@@first -->
<!-- $$$second -->
<h3 class="fn" id="second-var"><a name="second-var"></a><span class="type">T2</span> QPair::<span class="name">second</span></h3>
<p>The second element in the pair.</p>
<!-- @@@second -->
</div>
<div class="relnonmem">
<h2>Related Non-Members</h2>
<!-- $$$qMakePair[overload1]$$$qMakePairconstT1&constT2& -->
<h3 class="fn" id="qMakePair"><a name="qMakePair"></a><span class="type"><a href="qpair.html#QPair">QPair</a></span><<span class="type">T1</span>, <span class="type">T2</span>> <span class="name">qMakePair</span>(const <span class="type">T1</span> &<i>value1</i>, const <span class="type">T2</span> &<i>value2</i>)</h3>
<p>Returns a <a href="qpair.html">QPair</a><T1, T2> that contains <i>value1</i> and <i>value2</i>. Example:</p>
<pre class="cpp">
<span class="type"><a href="qlist.html">QList</a></span><span class="operator"><</span><span class="type"><a href="qpair.html">QPair</a></span><span class="operator"><</span><span class="type">int</span><span class="operator">,</span> <span class="type">double</span><span class="operator">></span> <span class="operator">></span> list;
list<span class="operator">.</span>append(qMakePair(<span class="number">66</span><span class="operator">,</span> <span class="number">3.14159</span>));
</pre>
<p>This is equivalent to <a href="qpair.html">QPair</a><T1, T2>(<i>value1</i>, <i>value2</i>), but usually requires less typing.</p>
<!-- @@@qMakePair -->
<!-- $$$swap$$$swapQPair<T1,T2>&QPair<T1,T2>& -->
<h3 class="fn" id="swap-1"><a name="swap-1"></a><span class="type">void</span> <span class="name">swap</span>(<span class="type"><a href="qpair.html#QPair">QPair</a></span><<span class="type">T1</span>, <span class="type">T2</span>> &<i>lhs</i>, <span class="type"><a href="qpair.html#QPair">QPair</a></span><<span class="type">T1</span>, <span class="type">T2</span>> &<i>rhs</i>)</h3>
<p>This is an overloaded function.</p>
<p>Swaps <i>lhs</i> with <i>rhs</i>.</p>
<p>This function was introduced in Qt 5.5.</p>
<!-- @@@swap -->
<!-- $$$operator!=[overload1]$$$operator!=constQPair<T1,T2>&constQPair<T1,T2>& -->
<h3 class="fn" id="operator-not-eq"><a name="operator-not-eq"></a><span class="type">bool</span> <span class="name">operator!=</span>(const <span class="type"><a href="qpair.html#QPair">QPair</a></span><<span class="type">T1</span>, <span class="type">T2</span>> &<i>p1</i>, const <span class="type"><a href="qpair.html#QPair">QPair</a></span><<span class="type">T1</span>, <span class="type">T2</span>> &<i>p2</i>)</h3>
<p>Returns <code>true</code> if <i>p1</i> is not equal to <i>p2</i>; otherwise returns false. Two pairs compare as not equal if their <code>first</code> data members are not equal or if their <code>second</code> data members are not equal.</p>
<p>This function requires the T1 and T2 types to have an implementation of <code>operator==()</code>.</p>
<!-- @@@operator!= -->
<!-- $$$operator<[overload1]$$$operator<constQPair<T1,T2>&constQPair<T1,T2>& -->
<h3 class="fn" id="operator-lt"><a name="operator-lt"></a><span class="type">bool</span> <span class="name">operator<</span>(const <span class="type"><a href="qpair.html#QPair">QPair</a></span><<span class="type">T1</span>, <span class="type">T2</span>> &<i>p1</i>, const <span class="type"><a href="qpair.html#QPair">QPair</a></span><<span class="type">T1</span>, <span class="type">T2</span>> &<i>p2</i>)</h3>
<p>Returns <code>true</code> if <i>p1</i> is less than <i>p2</i>; otherwise returns false. The comparison is done on the <code>first</code> members of <i>p1</i> and <i>p2</i>; if they compare equal, the <code>second</code> members are compared to break the tie.</p>
<p>This function requires the T1 and T2 types to have an implementation of <code>operator<()</code>.</p>
<!-- @@@operator< -->
<!-- $$$operator<<[overload1]$$$operator<<QDataStream&constQPair<T1,T2>& -->
<h3 class="fn" id="operator-lt-lt"><a name="operator-lt-lt"></a><span class="type"><a href="qdatastream.html">QDataStream</a></span> &<span class="name">operator<<</span>(<span class="type"><a href="qdatastream.html">QDataStream</a></span> &<i>out</i>, const <span class="type"><a href="qpair.html#QPair">QPair</a></span><<span class="type">T1</span>, <span class="type">T2</span>> &<i>pair</i>)</h3>
<p>Writes the pair <i>pair</i> to stream <i>out</i>.</p>
<p>This function requires the T1 and T2 types to implement <code>operator<<()</code>.</p>
<p><b>See also </b><a href="datastreamformat.html">Serializing Qt Data Types</a>.</p>
<!-- @@@operator<< -->
<!-- $$$operator<=[overload1]$$$operator<=constQPair<T1,T2>&constQPair<T1,T2>& -->
<h3 class="fn" id="operator-lt-eq"><a name="operator-lt-eq"></a><span class="type">bool</span> <span class="name">operator<=</span>(const <span class="type"><a href="qpair.html#QPair">QPair</a></span><<span class="type">T1</span>, <span class="type">T2</span>> &<i>p1</i>, const <span class="type"><a href="qpair.html#QPair">QPair</a></span><<span class="type">T1</span>, <span class="type">T2</span>> &<i>p2</i>)</h3>
<p>Returns <code>true</code> if <i>p1</i> is less than or equal to <i>p2</i>; otherwise returns <code>false</code>. The comparison is done on the <code>first</code> members of <i>p1</i> and <i>p2</i>; if they compare equal, the <code>second</code> members are compared to break the tie.</p>
<p>This function requires the T1 and T2 types to have an implementation of <code>operator<()</code>.</p>
<!-- @@@operator<= -->
<!-- $$$operator==[overload1]$$$operator==constQPair<T1,T2>&constQPair<T1,T2>& -->
<h3 class="fn" id="operator-eq-eq"><a name="operator-eq-eq"></a><span class="type">bool</span> <span class="name">operator==</span>(const <span class="type"><a href="qpair.html#QPair">QPair</a></span><<span class="type">T1</span>, <span class="type">T2</span>> &<i>p1</i>, const <span class="type"><a href="qpair.html#QPair">QPair</a></span><<span class="type">T1</span>, <span class="type">T2</span>> &<i>p2</i>)</h3>
<p>Returns <code>true</code> if <i>p1</i> is equal to <i>p2</i>; otherwise returns <code>false</code>. Two pairs compare equal if their <code>first</code> data members compare equal and if their <code>second</code> data members compare equal.</p>
<p>This function requires the T1 and T2 types to have an implementation of <code>operator==()</code>.</p>
<!-- @@@operator== -->
<!-- $$$operator>[overload1]$$$operator>constQPair<T1,T2>&constQPair<T1,T2>& -->
<h3 class="fn" id="operator-gt"><a name="operator-gt"></a><span class="type">bool</span> <span class="name">operator></span>(const <span class="type"><a href="qpair.html#QPair">QPair</a></span><<span class="type">T1</span>, <span class="type">T2</span>> &<i>p1</i>, const <span class="type"><a href="qpair.html#QPair">QPair</a></span><<span class="type">T1</span>, <span class="type">T2</span>> &<i>p2</i>)</h3>
<p>Returns <code>true</code> if <i>p1</i> is greater than <i>p2</i>; otherwise returns false. The comparison is done on the <code>first</code> members of <i>p1</i> and <i>p2</i>; if they compare equal, the <code>second</code> members are compared to break the tie.</p>
<p>This function requires the T1 and T2 types to have an implementation of <code>operator<()</code>.</p>
<!-- @@@operator> -->
<!-- $$$operator>=[overload1]$$$operator>=constQPair<T1,T2>&constQPair<T1,T2>& -->
<h3 class="fn" id="operator-gt-eq"><a name="operator-gt-eq"></a><span class="type">bool</span> <span class="name">operator>=</span>(const <span class="type"><a href="qpair.html#QPair">QPair</a></span><<span class="type">T1</span>, <span class="type">T2</span>> &<i>p1</i>, const <span class="type"><a href="qpair.html#QPair">QPair</a></span><<span class="type">T1</span>, <span class="type">T2</span>> &<i>p2</i>)</h3>
<p>Returns <code>true</code> if <i>p1</i> is greater than or equal to <i>p2</i>; otherwise returns <code>false</code>. The comparison is done on the <code>first</code> members of <i>p1</i> and <i>p2</i>; if they compare equal, the <code>second</code> members are compared to break the tie.</p>
<p>This function requires the T1 and T2 types to have an implementation of <code>operator<()</code>.</p>
<!-- @@@operator>= -->
<!-- $$$operator>>[overload1]$$$operator>>QDataStream&QPair<T1,T2>& -->
<h3 class="fn" id="operator-gt-gt"><a name="operator-gt-gt"></a><span class="type"><a href="qdatastream.html">QDataStream</a></span> &<span class="name">operator>></span>(<span class="type"><a href="qdatastream.html">QDataStream</a></span> &<i>in</i>, <span class="type"><a href="qpair.html#QPair">QPair</a></span><<span class="type">T1</span>, <span class="type">T2</span>> &<i>pair</i>)</h3>
<p>Reads a pair from stream <i>in</i> into <i>pair</i>.</p>
<p>This function requires the T1 and T2 types to implement <code>operator>>()</code>.</p>
<p><b>See also </b><a href="datastreamformat.html">Serializing Qt Data Types</a>.</p>
<!-- @@@operator>> -->
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<acronym title="Copyright">©</acronym> 2017 The Qt Company Ltd.
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distrib
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Mageia
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6
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armv5tl
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media
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core-updates
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by-pkgid
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768f7d9f703884aa2562bf0a651086df
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files
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560
